Installation Guide

The X690 series switches include the following base models:
• ExtremeSwitching X690-48t-2q-4c switch
• ExtremeSwitching X690-48x-2q-4c switch
Front-panel Ethernet ports can provide 100 Gb Ethernet connectivity using installable QSFP28 and
QSFP+ optical modules. The front panel of each X690 switch provides the following:
• Two QSFP+ based 40 Gb ports. With appropriate cabling, each of the two QSFP+ ports can be
partitioned into four 10 Gb ports.
• Four QSFP28 based 100 Gb ports. With appropriate cabling, each of the four QSFP28 ports can be
partitioned into 10 Gb, 25 Gb, 40 Gb, or 50 Gb ports.
For details about the port partitioning options that are available on X690 switches, see Partitioning
X690 Switch Ports into Data Lanes on page 101.
X690 series switches also have 48 front-panel Ethernet ports that can provide 10-gigabit Ethernet
connectivity using installable optical modules.
A serial console port on the front panel of the X690 series switch allows you to connect a terminal and
perform local management. An Ethernet management port can be used to connect the system to a
parallel management network for administration. Alternatively, you can use an Ethernet cable to
connect this port directly to a laptop to view and locally manage the switch configuration. The Ethernet
management port supports 10/100/1000 Mbps speeds.
Switch cooling is provided by replaceable fan modules. Fan modules are available in two dierent
models that direct the airflow either from front to back or from back to front. All installed fan modules
must be of the same model, so that they all direct the airflow in the same direction.
Note
Ensure that all fan module slots are filled when the switch is powered on. Fan modules can be
hot-swapped after power has been turned on.
Two power supply bays accommodate either AC or DC power supplies. Power supplies have integrated
cooling fans that operate independently of the switch fans. Like the fan modules, the power supplies are
available in models with either front-to-back or back-to-front cooling airflow.
Caution
Air must flow in the same direction for all installed fan modules and power supplies in a X690
series switch.
X690 series switches require ExtremeXOS version 22.3 or later.
Partitioning X690 Switch Ports into Data Lanes
Front-panel ports on X690 series switches can be configured for either 100-gigabit or 40-gigabit mode,
and each port can be partitioned into data lanes through the use of split cables. This yields a total of up
to 72 ports.
ExtremeSwitching Switches
Partitioning X690 Switch Ports into Data Lanes
ExtremeSwitching Hardware Installation Guide 101